68 lines
2.1 KiB
C#
68 lines
2.1 KiB
C#
using Microsoft.Extensions.Logging;
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public class SongResolver
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{
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private readonly IEnumerable<ISongValidator> _songValidators;
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private readonly ILogger<SongResolver> logger;
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public SongResolver(ILogger<SongResolver> logger)
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{
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this.logger = logger;
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this._songValidators = new List<ISongValidator>();
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foreach (Type mytype in System.Reflection.Assembly.GetExecutingAssembly().GetTypes()
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.Where(mytype => mytype.GetInterfaces().Contains(typeof(ISongValidator)) && !(mytype.Name.EndsWith("Base"))))
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{
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if (Activator.CreateInstance(mytype) is ISongValidator validator)
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{
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logger.LogDebug("Registering song validator: {ValidatorType}", mytype.Name);
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this._songValidators = this._songValidators.Append(validator);
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}
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}
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}
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public async Task<Song> ResolveSongAsync(Uri songUri)
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{
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foreach (var validator in _songValidators)
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{
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if (validator.CanValidateUri(songUri))
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{
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if (!await validator.CanExtractSongMetadataAsync(songUri))
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{
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this.logger.LogWarning("Cannot extract metadata for song URI: {SongUri}", songUri);
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return new Song
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{
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Artist = "Unknown Artist",
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Name = "Unknown Title",
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Url = songUri.ToString(),
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Provider = SongProvider.PlainHttp,
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};
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}
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return await validator.ValidateAsync(songUri);
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}
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}
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return new Song
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{
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Artist = "Unknown Artist",
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Name = "Unknown Title",
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Url = songUri.ToString(),
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Provider = SongProvider.PlainHttp,
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};
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}
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public bool CanValidate(Uri songUri)
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{
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foreach (var validator in _songValidators)
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{
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if (validator.CanValidateUri(songUri))
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{
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return true;
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}
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}
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return false;
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}
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} |